Java 8 Stream peek method Example

7 years ago Lalit Bhagtani 0

In this tutorial, we will learn about Java 8 stream peek method. peek() method :- This method takes one Consumer as an argument, this consumer accepts one parameter T as an input argument and return one stream of parameter T as a return value. The main purpose of this method is to support debugging, When you want to see Read More

Java 8 Stream flatMap method Example

7 years ago Lalit Bhagtani 5

In this tutorial, we will learn about Java 8 stream flatMap method. flatMap() method :- This method takes one Function as an argument, this function accepts one parameter T as an input argument and return one stream of parameter R as a return value. When this function is applied on each element of this stream, it produces a Read More

Java 8 Stream map method Example

7 years ago Lalit Bhagtani 0

In this tutorial, we will learn about Java 8 stream map method. map() method :- This method takes one Function as an argument and returns a new stream consisting of the results generated by applying the passed function to all the elements of the stream. Syntax :-  <R> Stream<R> map ( Function<? super T, ? extends R> Read More

Java 8 Stream limit & skip method Example

7 years ago Lalit Bhagtani 0

In this tutorial, we will learn about Java 8 stream limit and skip method. limit() method :- This method takes one long ( N ) as an argument and return a stream of length N, after truncating it. Syntax :-  Stream<T> limit(long n) Reference :-  limit() method JavaDocs Problem Statement :- You have given a list of integers, remove all Read More

Java 8 Stream findAny & findFirst method Example

7 years ago Lalit Bhagtani 0

In this tutorial, we will learn about Java 8 stream findAny and findFirst method. Note :- To keep this tutorial short and concise, Employee Bean used in the example is not given here, you can check it here. findAny() method :- This method is called on Stream object, it returns an Optional object containing any one element of the Read More

Java 8 Convert List to Map using Streams API

7 years ago Lalit Bhagtani 1

Java 8 Convert List to Map :- In this tutorial, we will learn to convert list to map using Stream API. Note :- To keep this tutorial short and concise, Employee Bean used in the example is not given here, you can check it here. Problem Statement :- Given a list of Employee object convert it Read More

Java 8 filter method Example

7 years ago Lalit Bhagtani 0

In this tutorial, we will learn about Stream java 8 filter method. filter() method :- This method is called on Stream object, it takes one Predicate as an argument and returns a new stream consisting of the elements of the called stream that match the given predicate. Syntax :-  Stream<T> filter(Predicate<? super T> predicate) Reference :-  filter() method Read More

Java 8 Convert Map to List using Streams API

7 years ago Lalit Bhagtani 0

Java 8 Convert Map to List :- In this tutorial, we will learn to convert map to list using Stream API. Problem Statement :- Given a map of Integer as a key and String as a Value convert it to the list, containing all the values of Map. Let’s see the implementation of above problem Read More

Java 8 Convert Primitive Array to List using Streams API

7 years ago Lalit Bhagtani 0

Java 8 Convert Primitive Array to List :- In this tutorial, we will learn to convert primitive array to list using Stream API. Converting an array of objects to a list is very easy and straightforward, you can use Arrays.asList() directly to convert it but this method does not work for converting primitive type arrays because Read More